Do,yourself a favor and Never ever ever use a hot water tank. We went through at least 5 in a 15 year period. They are wasteful and rust out quickly leading to leaks.
I installed a propane on demand hot water system cheaper thank a water tank costs and we never run out of hot water. Just drop a pump in the well and pump it to the on demand heater and you will have plenty of hot water.
Use all pex for plumbing and it's dirt cheap and last a whole lot longer than copper or PVC will.
Up where you are the water is rusty all the time. I have one which is actually connected to my water the same as at home. Not sure how long it will last, as it is used. Pex is definitely the way to go up there.
We have a ton of iron in the water. The only way to fix that was to use 2 inline water filters, 5 microns. I run he water for about a half hour then change the first filter and the water is clean for the whole trip. Of course I don't drink it but it's fine for showering and dishes.
You can buy the filters dirt cheap off ebay. Way cheaper than lowes or Home Depot.
We've had minimal problems with our tank up camp. Burnt out a few elements but that's just maintence that needs done. Ours been in since the early 90's with no holes. We also drain the water out of the tank almost everytime were not up there.
Camp 2F hearts content, cherry grove. Home Pittsburgh